diff options
| author | Kirill Tkhai <ktkhai@parallels.com> | 2014-01-28 11:26:14 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-02-09 13:31:48 +0100 |
| commit | 390f3258cb2d031f1c17aa32e771ebd336e89073 (patch) | |
| tree | d3661f84b3a895c455d7b14a48bd97505ceb5a80 | |
| parent | eaa4e4fcf1b5c60e656d93242f7fe422173f25b2 (diff) | |
sched/deadline: Skip in switched_to_dl() if task is current
When p is current and it's not of dl class, then there are no other
dl taks in the rq. If we had had pushable tasks in some other rq,
they would have been pushed earlier. So, skip "p == rq->curr" case.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Acked-by: Juri Lelli <juri.lelli@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20140128072421.32315.25300.stgit@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | kernel/sched/deadline.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 0dd5e0971a07..b5700bceee55 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1560,7 +1560,7 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p) if (unlikely(p->dl.dl_throttled)) return; - if (p->on_rq || rq->curr != p) { + if (p->on_rq && rq->curr != p) { #ifdef CONFIG_SMP if (rq->dl.overloaded && push_dl_task(rq) && rq != task_rq(p)) /* Only reschedule if pushing failed */ |